Most of us will face problems during writing for someone or lets say writing on something, coz we will often get confused like where to start ,what to include ,cons pros if there is any bebating topic,how to conclude, this all are the things that we come across to write a speech.  Let Me tell you it will not work like this ,first of all you have to calm your mind ,do some research on what topic you are choosing to write about, have a very good start like giving your title a eye catch words and make sure that you make a constant contact through your words that the audience dont disconnect form you ,include more points coz its never gonna harm your speech ,lastly conclude with the message and make sure you hear the applause at the last like you want to be .

Let's see to make it more appropriate. 

What is speech?Speech writing is the art of conveying a message to the audience through words. Speech writing isn't much different than essay writing. ... But if you follow the basic guidelines and proper speech format, you can easily write a great speech that will leave the audience with something good to think about. It's all about the art and how you Express it in your way.

What are the purpose of speech writing?

Speeches typically serve four general purposes: to inform, persuade, instruct, or entertain. By taking a step back to examine the general purpose of the speech, a speaker reinforces his or her thoughts and ideas by making sure that everything presented to argue your case aligns to that general purpose.

How to make it interesting and good for your audience to have an interesting listening.Consider the audience's needs,Catch the audience's attention,Hold the audience's attention for the next 15 minutes,Offer a solution to their problem,Provide a call to action.Deliver a performance, rather than a speech,Use the power of eye contact,Don't hide behind the lectern,Posture matters,Tell compelling stories.,Vary your cadence,Speak about what you know and care about,Use your conclusion as an opportunity to summarize the main points of your speech,Don't repeat your main points word for word; rather, paraphrase the key themes and arguments you have just presented,Consider ending your speech with an additional anecdote or quotation that captures the theme of your speech.